What is Leichtbau? And why would anybody pay that much ($39.95 MSRP) for a pair of mountain bike grips?
The key feature of this lock-on grip is the wing like shape of the grip which distributes the pressure over a wider section of your palm. I was having issues with my hand tingling and going numb on descents and on long rides.
The GX1 has almost completely alleviated this problem. I even find the wing shape helps me lift the rear of the bike when bunny-hopping by exaggerating the wrist roll.